whoops, fix a bug in my example :)

src/lib/libc/string/strtok.3

@@ -33,7 +33,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"	$OpenBSD: strtok.3,v 1.7 1999/07/03 15:58:50 aaron Exp $
+.\"	$OpenBSD: strtok.3,v 1.8 1999/07/03 16:21:31 aaron Exp $
 .\"
 .Dd June 29, 1991
 .Dt STRTOK 3
@@ -97,7 +97,7 @@ int i = 0;
 snprintf(s, sizeof(s), "cat dog horse cow");
 
 for ((p = strtok(s, " ")); p; (p = strtok(NULL, " ")), i++) {
-    if (i < MAXTOKENS)
+    if (i < MAXTOKENS - 1)
         tokens[i] = p;
 }
 tokens[i] = '\e0';